This blog article, originally posted on May 20, 2024, has been replaced by a follow-up posting on May 23, 2024. The follow-up posting provides a report on the results of the trip to the Atlanta airport, and it offers examples of other more sensible rapid transit senior discount cards.
In the 70s, “Europe on $5/day” was all the rage. Maybe you could write a similar “How To” for Atlanta? (adjusted for inflation, of course)